Detachable water pipe external heat preservation mechanism
By designing a detachable external insulation mechanism for water pipes, utilizing a semi-shell, expansion layer, and bolt connection, combined with three layers of insulation and sealing joints, the problems of inconvenient installation, insufficient insulation, and poor pipe diameter adaptability of water pipe insulation devices are solved, achieving convenient maintenance and efficient insulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZHAOFENG ARCHITECTURAL DECORATION DESIGN CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-12
AI Technical Summary
Existing water pipe insulation devices are inconvenient to install and maintain, have insufficient insulation performance, and poor adaptability to pipe diameters, leading to problems such as freezing and cracking.
It adopts a detachable external water pipe insulation mechanism, including a semi-circular shell, an expansion layer, an insulation layer, and a connecting mechanism. It can be quickly disassembled and assembled with bolts and nuts. Combined with three layers of insulation and sealing joints, it forms a double seal and is suitable for different pipe diameters.
It enables quick assembly and disassembly of water pipe insulation mechanisms, facilitates maintenance, improves insulation efficiency and versatility, prevents water seepage, adapts to different pipe diameters, and avoids freezing and cracking.
Smart Images

Figure CN224229563U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water pipe insulation equipment, and in particular to a detachable external water pipe insulation mechanism. Background Technology
[0002] In cold environments, water pipes are prone to freezing and cracking due to a lack of effective insulation. Existing insulation devices generally have the following defects:
[0003] Inconvenient installation and maintenance: Most of them use fixed connections, and the insulation layer needs to be damaged during maintenance, which is time-consuming and labor-intensive.
[0004] Insufficient thermal insulation performance: Single-layer insulation materials cannot achieve both elastic bonding and efficient thermal insulation, and heat is easily lost through the gaps in the shell;
[0005] Poor pipe diameter adaptability: The rigid shell is difficult to adapt to water pipes of different specifications, resulting in low versatility. To address this, we propose a detachable external water pipe insulation mechanism. Utility Model Content
[0006] To address the aforementioned problems, this invention provides a detachable external water pipe insulation mechanism. This invention solves the problems mentioned in the background section.
[0007] This utility model provides the following technical solution: a detachable external water pipe insulation mechanism, including a water pipe body, a reinforcing shell provided on the outside of the water pipe body, the reinforcing shell including two semi-circular half-shells, an expansion layer provided at the position where the reinforcing shell fits with the water pipe body, an insulation layer provided in the inner cavity of the reinforcing shell, the insulation layer including an outer protective reinforcement layer, a middle high-efficiency insulation layer and an inner elastic buffer layer in sequence, a connecting ear provided at the edge of the half-shell, a clearance groove provided on the connecting ear for connection by a connecting mechanism, and a sealing joint detachably installed at the end of the reinforcing shell.
[0008] In the above scheme, multiple anti-slip strip-shaped protrusions are distributed at equal intervals along the inner side of the expansion layer.
[0009] In the above scheme, the connecting mechanism includes a nut and a bolt, and the bolt passes through the relief groove.
[0010] In the above scheme, a sealing ring is provided between the sealing joint and the inner wall of the reinforcing shell.
[0011] In the above scheme, the inner elastic buffer layer is an EVA foam layer.
[0012] In the above scheme, the intermediate high-efficiency thermal insulation layer is an aerogel felt layer.
[0013] In the above scheme, the outer protective reinforcement layer is a glass wool felt layer.
[0014] The advantages and beneficial effects of this utility model are as follows: This utility model provides a detachable external water pipe insulation mechanism. Through the connection mechanism of two semi-circular half-shells with bolts and nuts, the insulation mechanism can be quickly disassembled and assembled, and pipe maintenance can be completed without tools, solving the problem of inconvenient installation and maintenance of existing devices; the insulation layer adopts a three-layer structure of outer protective reinforcement layer, middle high-efficiency insulation layer and inner elastic buffer layer. The combination of the three layers improves the insulation efficiency compared with traditional single-layer materials; the sealing joint at the end of the shell is reinforced to form a double seal with the inner wall sealing ring. Combined with the outer glass wool felt layer of the insulation layer, it effectively prevents water from seeping into the insulation layer, solving the problem of easy water leakage at the joint leading to insulation failure; the anti-slip strip protrusions on the inner side of the expansion layer are in close contact with the pipe surface. Utilizing the elastic deformation ability of EVA foam, it can adapt to a certain range of pipe diameter changes, significantly improving the versatility of the device. Attached Figure Description
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the semi-shell of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the insulation layer of this utility model.
[0019] In the diagram: 1. Water pipe body; 11. Reinforced shell; 12. Half shell; 13. Expansion layer; 14. Anti-slip strip protrusion; 15. Insulation layer; 151. Outer protective reinforcement layer; 152. Middle high-efficiency insulation layer; 153. Inner elastic buffer layer; 16. Connecting ear; 17. Relief groove; 18. Nut; 19. Bolt; 2. Sealing ring; 21. Sealing joint. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0021] like Figure 1-3As shown, this utility model is a detachable external water pipe insulation mechanism, including a water pipe body 1. A reinforcing shell 11 is provided on the outside of the water pipe body 1. The reinforcing shell 11 includes two semi-circular semi-shells 12. An expansion layer 13 is provided at the position where the reinforcing shell 11 fits against the water pipe body 1. An insulation layer 15 is provided in the inner cavity of the reinforcing shell 11. The insulation layer 15 includes an outer protective reinforcement layer 151, a middle high-efficiency insulation layer 152, and an inner elastic buffer layer 153 in sequence. A connecting ear 16 is provided at the edge of the semi-shell 12. A relief groove 17 is provided on the connecting ear 16 and connected by a connecting mechanism. A sealing joint 21 is detachably installed at the end of the reinforcing shell 11.
[0022] The reinforced housing 11 adopts a split half-housing 12 design, which is positioned by connecting lugs 16 and relief grooves 17, providing an installation base for subsequent bolt connections.
[0023] The expansion layer 13, as an inner elastic buffer structure, uses its material elasticity to compensate for dimensional differences in pipe diameters. Combined with the three-layer structure of the insulation layer 15, it forms a complete insulation barrier from the pipe surface to the outer shell. The sealing joint 21 is detachably installed at the end of the shell for sealing and protection at pipe joints, and is a key component for solving waterproofing issues. The semi-shell 12, in conjunction with the connecting mechanism, allows for quick disassembly of the insulation mechanism, facilitating pipe maintenance. The composite design of the three insulation layers 15 significantly improves insulation performance, while the expansion layer 13 enhances pipe diameter adaptability.
[0024] In the above scheme, multiple anti-slip strip-shaped protrusions 14 are evenly distributed along the inner side of the expansion layer 13. The anti-slip strip-shaped protrusions 14 are made of rubber, uniformly distributed along the pipe axis, with a protrusion height of 2-3 mm, generating frictional resistance when in contact with the pipe surface. The elastic fit between the anti-slip strip-shaped protrusions 14 and the expansion layer 13 prevents the reinforced shell 11 from sliding along the pipe axis. Simultaneously, by deforming to adapt to different pipe diameters, it solves the problems of insecure fixing and poor versatility of traditional rigid shells.
[0025] In the above scheme, the connecting mechanism includes a nut 18 and a bolt 19, with the bolt 19 passing through a relief groove 17. The relief groove 17 is an oblong through hole with a diameter 2mm larger than the outer diameter of the bolt 19, allowing for slight adjustments to the position of the half-shell 12 during installation. The nut 18 features an anti-loosening design, and the rigid connection between the bolt 19 and the nut 18 ensures the structural strength of the shell after assembly. The design of the relief groove 17 is compatible with installation errors and improves assembly convenience.
[0026] In the above scheme, a sealing ring 2 is provided between the sealing joint 21 and the inner wall of the reinforcing shell 11. The sealing ring 2 is made of silicone rubber with an O-shaped cross-section. During installation, it is embedded in the annular groove at the end of the shell. The sealing ring 2 and the sealing joint 21 cooperate to form the first waterproof barrier, preventing external moisture from entering the insulation layer area. Combined with the waterproof coating on the outer layer of the insulation layer, double waterproof protection is achieved.
[0027] In the above scheme, the inner elastic buffer layer 153 is an EVA foam layer. The inner side of the EVA foam is processed into an arc-shaped curved surface that matches the outer diameter of the pipe, and hemispherical protrusions are set on the outer side. The elastic deformation capability of the EVA foam allows the inner layer to fit tightly against the pipe surface, reducing air gaps. The outer protrusions form point contact with the middle aerogel felt, reducing the thermal bridging effect and improving the insulation efficiency.
[0028] In the above scheme, the intermediate high-efficiency insulation layer 152 is an aerogel felt layer. As the core insulation layer, the aerogel felt utilizes a nanoporous structure to block heat conduction, and its radial fiber distribution enhances the circumferential insulation effect, effectively reducing the thermal conductivity compared to traditional insulation materials.
[0029] In the above scheme, the outer protective reinforcement layer 151 is a glass wool felt layer. The glass wool felt is 5-15mm thick, coated with a 0.3-0.5mm waterproof asphalt coating, and extends 15mm beyond the butt joint of the half-shell to form an overlapping sealing area. The glass wool felt serves both as insulation and structural support, the waterproof coating prevents external moisture penetration, and the overlapping design at the edges enhances the sealing of the joint when the shell is closed, protecting the internal insulation material from moisture.
[0030] Working principle:
[0031] This detachable external insulation mechanism for water pipes wraps two semi-shells 12 around the outside of the main body 1 of the water pipe. The anti-slip strip protrusions 14 of the expansion layer 13 contact the pipe to generate frictional resistance. The connecting ears 16 of the semi-shells 12 are aligned, and the bolts 19 are passed through the relief grooves 17 and tightened with nuts 18 to form a complete reinforced shell 11. A sealing joint 21 is installed at the pipe joint position. The sealing ring 2 is deformed under pressure to fill the gap between the shell and the joint, forming a sealing end face.
[0032] The inner EVA foam layer conforms to the pipe through elastic deformation, reducing heat loss caused by air convection. The outer protrusions reduce the contact area with the middle layer, reducing the heat conduction path. The middle aerogel felt layer utilizes a nanoscale porous structure to effectively block heat loss through conduction and convection. Its low thermal conductivity significantly improves the overall thermal insulation performance. The outer glass wool felt layer serves as a protective layer to withstand external mechanical impacts, and the waterproof asphalt coating prevents rainwater and condensation from seeping in, ensuring that the insulation layer remains dry for a long time and maintaining a high-efficiency thermal insulation effect.
[0033] Loosen nut 18 and remove bolt 19 to separate half shell 12. The pipeline can be directly inspected or replaced without damaging the insulation layer structure. Sealing joint 21 can be disassembled separately, which facilitates the inspection or replacement of sealing ring 2 at the joint, making maintenance convenient and efficient.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A detachable external water pipe insulation mechanism, comprising a water pipe body (1), characterized in that: The outer side of the water pipe body (1) is provided with a reinforcing shell (11), which includes two semi-circular semi-shells (12). An expansion layer (13) is provided at the position where the reinforcing shell (11) fits against the water pipe body (1). An insulation layer (15) is provided in the inner cavity of the reinforcing shell (11). The insulation layer (15) includes an outer protective reinforcement layer (151), a middle high-efficiency insulation layer (152), and an inner elastic buffer layer (153) in sequence. A connecting ear (16) is provided at the edge of the semi-shell (12). A relief groove (17) is provided on the connecting ear (16) and connected by a connecting mechanism. A sealing joint (21) is detachably installed at the end of the reinforcing shell (11).
2. The detachable external water pipe insulation mechanism according to claim 1, characterized in that, Multiple anti-slip strip-shaped protrusions (14) are evenly distributed along the inner side of the expansion layer (13).
3. The detachable external water pipe insulation mechanism according to claim 1, characterized in that, The connecting mechanism includes a nut (18) and a bolt (19), the bolt (19) passing through a relief groove (17).
4. The detachable external water pipe insulation mechanism according to claim 1, characterized in that, A sealing ring (2) is provided between the sealing joint (21) and the inner wall of the reinforcing shell (11).
5. A detachable external water pipe insulation mechanism according to claim 1, characterized in that, The inner elastic buffer layer (153) is an EVA foam layer.
6. A detachable external water pipe insulation mechanism according to claim 1, characterized in that, The intermediate high-efficiency thermal insulation layer (152) is an aerogel felt layer.
7. A detachable external water pipe insulation mechanism according to claim 1, characterized in that, The outer protective reinforcement layer (151) is a glass wool felt layer.